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Finding the Fourth Proportional to 285,544.44, 394,053.66 and 158,222.16

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Solution

The fourth proportional to 285,544.44, 394,053.66 and 158,222.16 is: 218,347.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,544.44 : 394,053.66 = 158,222.16 : x
  2. Step 2: Convert to fraction form
    285,544.44/394,053.66 = 158,222.16/x
  3. Step 3: Cross multiply
    285,544.44x = 394,053.66 × 158,222.16
  4. Step 4: Simplify right side
    285,544.44x = 62,348,021,241.11
  5. Step 5: Solve for x
    x = 62,348,021,241.11/285,544.44
  6. Step 6: Final answer
    x = 218,347.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.